Russian Helicopters announced on 11 December that it had delivered five Mi-171Sh transport helicopters to Bangladesh.

One of the five Mi-171Sh helicopters that has been handed over to Bangladesh. (Russian Helicopters)

The helicopters are equipped with additional fuel tanks, external slings, spotlights, and avionics that allow them to operate at night and in any weather conditions.

They are also equipped with armour and protection systems so they can operate in areas of terrorist activity.

Russian Helicopters said Bangladesh received the helicopters in exchange for buying Russian goods under a deal concluded in late 2013.